1, Precision Gearbox, used in the textile machine. 2, The material is stainless steel or carbon steel. 1, Precision Gearbox, used in the textile machine. 2, The material is stainless steel or carbon steel. 3, The tolerance can be controlled within 0.02mm. 4, The guaranty time is one year.5 years experience dealing in dirt bike and parts Guaranteed quality and quantity Best quotation and service